document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=387239>Question 387239</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 7u+3r=724  and  3u+7r=1276\r<BR>\n" );
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document.write( "How much is each? (r and u) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #273719 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=273719\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 7u+3r=724<BR>\n" );
document.write( "3u+7r=1276 <BR>\n" );
document.write( "--------<BR>\n" );
document.write( "21u + 9r = 2172 eqn 1 times 3<BR>\n" );
document.write( "21u +49r = 8932 eqn 2 times 7<BR>\n" );
document.write( "---------------- Subtract<BR>\n" );
document.write( "-40r = -6760<BR>\n" );
document.write( "r = 169<BR>\n" );
document.write( "---------<BR>\n" );
document.write( "7u + 3*169 = 724<BR>\n" );
document.write( "u = 31<BR>\n" );
document.write( " </SPAN>\n" );
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